package com.gqb.collection;

public class Example extends ex { 
	  private String str = new String("good"); 
	  char[] ch = {'a','b','c'}; 
	  public static void main(String[] args) { 
	     Example ex = new Example(); 
	     ex.change(ex.str, ex.ch); 
	     System.out.print(ex.str +"and"); 
	     System.out.print(ex.ch);  
	     
	  } 
	    
	  public void change(String str, char ch[]){ 
	     str= "test ok"; 
	     ch[0]= 'g'; 
	  } 
	  public void Example(){
	  }
	} 
class ex {
	private String aString="a";
}